Semi-automatic plugging device for screw hole of shear wall
By designing a semi-automatic sealing device that includes a mortar funnel, an electric drill, a mortar cylinder, and a conical cylinder, the problem of incomplete sealing of bolt holes in shear walls was solved, achieving a stable and labor-saving sealing effect. It is suitable for sealing bolt holes in shear walls during building construction.
Patent Information
- Application Number
- CN202422121764.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The existing sealing methods for bolt holes in shear walls are complex to operate and prone to incomplete sealing, leading to leakage risks. Existing devices have the problem of insufficient sealing.
A semi-automatic sealing device was designed, comprising a mortar funnel, an electric drill, a mortar cylinder, and a conical cylinder. The electric drill drives a rotating screw to transmit mortar, and combined with a pre-embedded isolation cylinder and a pressure-balancing groove, it achieves stable sealing of tie bolt holes.
It improves sealing efficiency and effectiveness, avoids uneven hole formation and hollow areas, is easy and labor-saving to operate, has a wide range of applications, and is easy to carry and install.
Smart Images

Figure CN223767180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a semi-automatic sealing device for bolt holes in shear walls. Background Technology
[0002] Shear walls, also known as seismic walls, are walls in buildings or structures that primarily bear horizontal and vertical loads caused by wind or earthquakes, preventing structural shear failure. Shear walls are typically cast using molds, with bolts used to fix the formwork together. When the formwork is removed later, the bolts are also removed, leaving bolt holes in the shear wall. If these bolt holes on the exterior wall are not properly sealed, the probability of wall leakage will be greatly increased.
[0003] The existing methods for sealing screw holes usually involve manual sealing using a trowel or a manual squeezing cone. Because workers manually install the plugs, and there are many screw holes, it is easy for workers to neglect to properly seal some screw holes, resulting in serious leakage risks.
[0004] A search revealed that patent application number CN202310590178.5 discloses a sealing device for screw holes in walls, including a sealing pipe and an actuator. The actuator controls the sealing pipe to extend into or out of the hole and, in conjunction with the inner pipe, delivers sealing material, thus sealing the screw hole without requiring manual filling, improving work efficiency. A baffle compacts the injected sealing material when the outer pipe extends into the hole, enhancing the sealing effect. Multiple sub-plates form a pressure plate, and a first linkage rod controls the movement of the inner pipe to control the unfolding and blocking of the pressure plate. The distance the inner pipe moves also controls the unfolding angle, creating pressure plates of different diameters to accommodate screw holes of varying inner diameters.
[0005] Whether it is manual sealing or sealing the screw hole by controlling the movement of the inner tube, both methods involve operational complexity and incomplete sealing. Manual operation is labor-intensive and prone to incomplete sealing, while using the movement of the inner tube for sealing may result in insufficient sealing. Therefore, a semi-automatic sealing device for shear wall screw holes is proposed to solve the above problems. Utility Model Content
[0006] In order to solve the above-mentioned problems in the existing technology, this utility model provides a semi-automatic sealing device for bolt holes in shear walls.
[0007] The technical solution of this utility model is as follows:
[0008] A semi-automatic sealing device for tie rod holes in shear walls includes a mortar funnel, an electric drill, a mortar cylinder, and a mortar baffle. The mortar funnel is fixedly installed and connected to the groove on the upper side wall of the mortar cylinder for material conveying. A mortar baffle is installed at one end of the mortar cylinder, and a conical cylinder is installed at the other end of the mortar cylinder for conveying mortar into the tie rod holes on the wall. The conical cylinder is integrally formed and includes a connecting end, a discharge end, a guide cone surface, and a pressure-balancing groove. The discharge end is used to insert into the tie rod hole, and the connecting end is fixedly installed to the end of the mortar cylinder. The pressure-balancing groove is opened through the side wall of the guide cone surface for balancing the pressure of mortar injection. A rotating screw is provided inside the mortar cylinder, and one end of the rotating screw is connected to the output end of the electric drill.
[0009] Preferably, the mortar baffle is fixed to the end of the mortar cylinder near the mortar funnel by hexagonal bolts.
[0010] Preferably, a hand handle is provided on the side of the mortar cylinder that is symmetrical to the position where the mortar funnel is installed, and the hand handle is fixedly installed on the mortar cylinder by a hexagonal nut.
[0011] Preferably, the wall has tie bolt holes and an embedded isolation cylinder is installed inside the tie bolt holes. One end of the embedded isolation cylinder is fitted with a baffle plate, and the other end is used for injecting grout into a conical cylinder.
[0012] This utility model has the following beneficial effects: It uses an electric drive to rotate a screw to transmit grout to a conical cylinder, and then sets a pre-embedded isolation cylinder in the tie bolt hole on the wall to avoid unevenness of the wall causing uneven holes and resulting in voids during grouting. In addition, it mainly uses a pressure-balancing groove on the conical cylinder to avoid voids when adding grout, so that the whole device can fill the entire hole more stably during the grouting process. At the same time, it is driven by only an electric drill, which saves the operator effort. The overall device is simple and compact in design, has a wide range of applications, is easy to disassemble and carry, and has a strong on-site construction function. Attached Figure Description
[0013] Figure 1 This is a side view of the overall device structure of this utility model;
[0014] Figure 2 This is a top view of the overall device structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the conical cylinder of this utility model;
[0016] Figure 4 This is a cross-sectional view of the conical cylinder of this utility model.
[0017] The reference numerals in the figure are as follows:
[0018] 1. Mortar funnel; 2. Electric drill; 3. Hex bolt; 4. Mortar baffle; 5. Hand handle; 6. Mortar cylinder; 7. Hex nut; 8. Wall; 9. Conical cylinder; 901. Connecting end; 902. Discharge end; 903. Guide cone surface; 904. Pressure trough; 10. Sealing plate; 11. Embedded isolation cylinder; 12. Tie bolt hole; 13. Rotating screw. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0020] See Figures 1 to 4 A semi-automatic sealing device for bolt holes in shear walls includes a mortar funnel 1, an electric drill 2, a mortar cylinder 6, and a mortar baffle 4. The mortar funnel 1 is fixedly installed and connected to the groove on the upper side wall of the mortar cylinder 6 for conveying mortar. The mortar baffle 4 is installed at one end of the mortar cylinder 6, and a conical cylinder 9 is installed at the other end of the mortar cylinder 6 for conveying mortar into the tie bolt holes 12 on the wall 8. The conical cylinder 9 is integrally formed and includes a connecting end 901, a discharge end 902, a guide cone surface 903, and a pressure balancing groove 904. The discharge end 902 is used to insert into the tie bolt hole 12, and the connecting end 901 is fixedly installed to the end of the mortar cylinder 6. The pressure balancing groove 904 is opened through the side wall of the guide cone surface 903 for balancing the pressure of the injected mortar. A rotating screw 13 is provided inside the mortar cylinder 6, and one end of the rotating screw 13 is connected to the output end of the electric drill 2.
[0021] Furthermore, the mortar baffle 4 is fixed to the end of the mortar cylinder 6 near the mortar funnel 1 by hexagonal bolts 3.
[0022] Furthermore, a hand handle 5 is provided on the side of the mortar cylinder 6 that is symmetrical to the position of the mortar funnel 1, and the hand handle 5 is fixedly installed on the mortar cylinder 6 by a hexagonal nut 7.
[0023] Furthermore, tie bolt holes 12 are provided on the wall 8, and a pre-embedded isolation cylinder 11 is installed inside the tie bolt holes 12. A sealing plate 10 is installed at one end of the pre-embedded isolation cylinder 11, and the other end is used for the injection of grout into the conical cylinder 6.
[0024] The working principle of this utility model:
[0025] In this utility model, a mortar funnel 1 is first fixedly installed and connected to the groove on the upper side wall of a mortar cylinder 6 for inputting mortar. A mortar baffle 4 is installed at the end of the mortar cylinder 6 near the mortar funnel 1, and the mortar baffle 4 is fixed by a hexagonal bolt 3. A conical cylinder 9 is installed at the other end of the mortar cylinder 6 for conveying mortar into the tie bolt holes 12 on the wall 8. At the same time, a hand handle 5 is provided on the side of the mortar cylinder 6 that is symmetrical to the position where the mortar funnel 1 is installed, and the hand handle 5 is fixedly installed on the mortar cylinder 6 by a hexagonal nut 7. A rotating screw 13 is provided inside the mortar cylinder 6, and one end of the rotating screw 13 is connected to the output end of an electric drill 2.
[0026] The electric drill 2 drives the rotating screw 13 to rotate, thereby conveying the slurry in the mortar funnel 1 to the conical cylinder 9 by screw-type propulsion.
[0027] The conical cylinder 9 is integrally formed and includes a connecting end 901, a discharge end 902, a guide cone surface 903, and a pressure-balancing groove 904. The discharge end 902 is used to insert into the tie bolt hole 12, and the connecting end 901 is fixedly installed at the end of the mortar cylinder 6. The pressure-balancing groove 904 is opened through the side wall of the guide cone surface 903 to balance the pressure of the injected grout. At the same time, the wall 8 has a tie bolt hole 12 and a pre-embedded isolation cylinder 11 is set inside the tie bolt hole 12. One end of the pre-embedded isolation cylinder 11 is equipped with a baffle plate 10, and the other end is used for the conical cylinder 6 to inject grout. By opening the pressure-balancing groove 904 on the conical cylinder 9, the void phenomenon is avoided when adding grout, so that the whole device can fill the entire hole more stably during the grouting process.
[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A kind of shear wall screw hole semi-automatic plugging device, including mortar hopper (1), electric drill (2), mortar cylinder (6) and mortar baffle (4), the mortar hopper (1) fixed installation and communication at the upper side wall notch of mortar cylinder (6) for conveying material, mortar cylinder (6) one end installs the mortar baffle (4), it is characterized by: The other end of the mortar barrel (6) is installed with a conical barrel (9) for conveying mortar into the anchor bolt hole (12) on the wall (8); the conical barrel (9) is integrally formed and comprises a connecting end (901), a discharging end (902), a guide conical surface (903) and a pressure balancing groove (904); the discharging end (902) is used for being inserted into the anchor bolt hole (12), and the connecting end (901) is fixedly installed with the end of the mortar barrel (6); the pressure balancing groove (904) is provided through the side wall of the guide conical surface (903) for balancing pressure injection of mortar; the inside of the mortar barrel (6) is provided with a rotating screw rod (13), one end of the rotating screw rod (13) is connected with the output end of the electric drill (2).
2. The semi-automatic plugging device for a screw hole of a shear wall according to claim 1, characterized in that: The mortar baffle (4) is fixed on the side end of the mortar barrel (6) close to the mortar hopper (1) through the hexagonal bolt (3).
3. The semi-automatic plugging device for a screw hole of a shear wall according to claim 1, characterized in that: The side of the mortar barrel (6) opposite to the position where the mortar hopper (1) is installed is provided with a hand-held handle (5), and the hand-held handle (5) is fixedly installed on the mortar barrel (6) through the hexagonal nut (7).
4. The semi-automatic plugging device for a screw hole of a shear wall according to claim 1, characterized in that: The wall (8) is provided with the anchor bolt hole (12), and the pre-buried isolation barrel (11) is arranged in the anchor bolt hole (12); one end of the pre-buried isolation barrel (11) is installed with the blocking plate (10), and the other end is used for injecting mortar by the conical barrel (6).
Citation Information
Patent Citations
Plugging device for wall screw hole
CN116464173A